package com.iiapk.gridnew.view;

import android.R.anim;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.view.animation.Animation.AnimationListener;
import android.widget.Button;
import android.widget.RelativeLayout;
import com.iiapk.gridnew.R;

public class AnimButtons extends RelativeLayout{

	private Context context;
	private int leftMargin=0,bottomMargin=0;
	private final int buttonWidth=58;//图片宽高
	private final int r=180;//半径
	private final int maxTimeSpent=200;//最长动画耗时
	private final int minTimeSpent=80;//最短动画耗时
	private int intervalTimeSpent;//每相邻2个的时间间隔
	private Button[] btns;
	private Button btn_menu;
	private RelativeLayout.LayoutParams params;
	private boolean isOpen = false;//是否菜单打开状态
	private float angle;//每个按钮之间的夹角
	public AnimButtons(Context context) {
		super(context);
		this.context=context;
	}
	public AnimButtons(Context context, AttributeSet attrs) {
		super(context, attrs);
		this.context=context;
	}
	
	@Override
	protected void onFinishInflate() {
		super.onFinishInflate();
		View view=LayoutInflater.from(context).inflate(R.layout.anim_buttons, this);
		initButtons(view);
	}

	private void initButtons(View view){
		//6个按钮，具体视情况而定
		btns=new Button[3];
		btns[0] = (Button) view.findViewById(R.id.btn_camera);
		btns[1] = (Button) view.findViewById(R.id.btn_with);
		btns[2] = (Button) view.findViewById(R.id.btn_place);
	/*	btns[3] = (Button) view.findViewById(R.id.btn_music);
		btns[4] = (Button) view.findViewById(R.id.btn_thought);
		btns[5] = (Button) view.findViewById(R.id.btn_sleep);*/
		btn_menu = (Button) view.findViewById(R.id.btn_menu);
		
		leftMargin=((RelativeLayout.LayoutParams)(btn_menu.getLayoutParams())).leftMargin;
		bottomMargin=((RelativeLayout.LayoutParams)(btn_menu.getLayoutParams())).bottomMargin;
		
		for(int i=0;i<btns.length;i++){
			btns[i].setLayoutParams(btn_menu.getLayoutParams());//初始化的时候按钮都重合
			btns[i].setTag(String.valueOf(i));
			btns[i].setOnClickListener(clickListener);
		}
		
		intervalTimeSpent=(maxTimeSpent-minTimeSpent)/btns.length;//20
		angle=(float)Math.PI/(2*(btns.length-1));
	}
	
	@Override
	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
		super.onSizeChanged(w, h, oldw, oldh);
		final float unitDx =(w-leftMargin*2)/4;
		final int bottomMargins=this.getMeasuredHeight()-buttonWidth;//-bottomMargin;
		//Log.i("tag", "bottomMargins====="+bottomMargins);
		btn_menu.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				if(!isOpen){
					isOpen = true;
					btn_menu.startAnimation(animRotate(-45.0f, 0.5f, 0.45f));
					for(int i=0;i<btns.length;i++){
						/*float xLenth=(float)(r*Math.sin(i*angle));
						float yLenth=(float)(r*Math.cos(i*angle));
						//Log.i("tag", "xLenth======"+xLenth+",yLenth======"+yLenth);
						btns[i].startAnimation(animTranslate(xLenth, -yLenth, leftMargin+(int)xLenth, bottomMargins - (int)yLenth, btns[i], minTimeSpent+i*intervalTimeSpent));*/
						btns[i].startAnimation(animTranslate((i+1)*unitDx-leftMargin, -0, (int)((i+1)*unitDx), bottomMargins, btns[i], minTimeSpent+i*intervalTimeSpent));
					}
				}
				else{
					isOpen = false;
					btn_menu.startAnimation(animRotate(90.0f, 0.5f, 0.45f));
					for(int i=0;i<btns.length;i++){
						/*float xLenth=(float)(r*Math.sin(i*angle));
						float yLenth=(float)(r*Math.cos(i*angle));
						//Log.i("tag", "xLenth======"+xLenth+",yLenth======"+yLenth);
						btns[i].startAnimation(animTranslate(-xLenth, 0, leftMargin, bottomMargins, btns[i], maxTimeSpent-i*intervalTimeSpent));*/
						btns[i].startAnimation(animTranslate(leftMargin-(i+1)*unitDx, 0, leftMargin, bottomMargins, btns[i], maxTimeSpent-i*intervalTimeSpent));
					}
				}
			}
		});
	}
	
	private Animation animScale(float toX, float toY){
		Animation animation = new ScaleAnimation(1.0f, toX, 1.0f, toY, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
		animation.setInterpolator(context, anim.accelerate_decelerate_interpolator);
		animation.setDuration(400);
		animation.setFillAfter(false);
		return animation;
	}
	
	private Animation animRotate(float toDegrees, float pivotXValue, float pivotYValue){
		final Animation animation = new RotateAnimation(0, toDegrees, Animation.RELATIVE_TO_SELF, pivotXValue, Animation.RELATIVE_TO_SELF, pivotYValue);
		animation.setAnimationListener(new AnimationListener(){
			@Override
			public void onAnimationStart(Animation animation){
			}
			@Override
			public void onAnimationRepeat(Animation animation){
			}
			@Override
			public void onAnimationEnd(Animation animation){
				animation.setFillAfter(true);
			}
		});
		return animation;
	}
	
	private Animation animTranslate(float toX, float toY, final int lastX, final int lastY,
			final Button button, long durationMillis){
		Animation animation = new TranslateAnimation(0, toX, 0, toY);				
		animation.setAnimationListener(new AnimationListener(){
			@Override
			public void onAnimationStart(Animation animation){
			}
			@Override
			public void onAnimationRepeat(Animation animation) {
			}
			@Override
			public void onAnimationEnd(Animation animation){
				params = new RelativeLayout.LayoutParams(0, 0);
				params.height = buttonWidth;
				params.width = buttonWidth;											
				params.setMargins(lastX, lastY, 0, 0);
				button.setLayoutParams(params);
				button.clearAnimation();
			}
		});																								
		animation.setDuration(durationMillis);
		return animation;
	}
	
	View.OnClickListener clickListener=new View.OnClickListener(){
		@Override
		public void onClick(View v) {
			int selectedItem=Integer.parseInt((String)v.getTag());
			for(int i=0;i<btns.length;i++){
				if(i==selectedItem){
					btns[i].startAnimation(animScale(2.0f, 2.0f));
				}else{
					btns[i].startAnimation(animScale(0.0f, 0.0f));
				}
			}
			if(onButtonClickListener!=null){
				onButtonClickListener.onButtonClick(v, selectedItem);
			}
		}
	};
	
	public boolean isOpen(){
		return isOpen;
	}
	
	private OnButtonClickListener onButtonClickListener;
	public interface OnButtonClickListener{
		void onButtonClick(View v,int id);
	}
	public void setOnButtonClickListener(OnButtonClickListener onButtonClickListener){
		this.onButtonClickListener=onButtonClickListener;
	}
}
